Definition
A person or thing that is widely disliked or disapproved of; regarded as the primary public enemy.
頭號公敵
In that small town, the new development was practically public enemy number one.
在那個小鎮上，新的開發案幾乎成了頭號公敵。
During the recession, high unemployment became public enemy number one.
在經濟衰退期間，高失業率成了頭號公敵。
For some, smartphones have become public enemy number one, distracting people and causing isolation.
對某些人來說，智慧型手機已成為頭號公敵，分散人們的注意力並造成孤立。